The International Electrotechnical Commission (IEC), is the international standards organization responsible for the fields of electricity, electrical engineering, electromagnetic compatibility, nanotechnology and related techniques . It is complementary to the International Organization for Standardization (ISO), which is responsible for other areas. The IEC is made up of representatives from different national standardization bodies. The IEC was established in 1906 and currently has 170 participating countries. IEC standards are recognized in more than 100 countries. The IEC has also developed the Affiliate Country Program for developing countries to enable them to benefit from IEC standards and participate in the process of developing international standards. Senegal has benefited from this program since 2001 through the National Technical Committee (CEN) and is currently affiliated plus. Senegal is also a signatory to the letter of "IEC Declaration ACAS" which is Affiliate Conformity Assessment System (ACAS) which offers Affiliate Participants new benefits in all IEC Conformity Assessment Systems, IECEE, IECQ, IECEx and IECRE, including any future CA system established by the IEC. The objective is to train Affiliates in the use of IEC international standards and to benefit from its CA systems through the recognition of IEC CA certificates at the national level. The IEC CA platform is one of the largest and most reliable in the world because it has over a million certificates of conformity or test reports issued by certification bodies or laboratories, whose competence is internationally recognized.